Fixed the following warning here.
"warning: â€˜dma_alloc_coherent’ defined but not used" while compiling
udc-core
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
        DMA_FROM_DEVICE         = 2,
 };
 
-static void *dma_alloc_coherent(size_t len, unsigned long *handle)
+static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
 {
        *handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);
        return (void *)*handle;